Balanced binary sorting treeBalanced binary sorting tree (Balanced binary sort trees), previous blog "Data structure" binary sort tree BST spoke BST, and at the end we said that the operation on BST would not exceed O (h), since tree height is so important, So Bbst's study is to make the depth of the tree reach O (LGN) within an acceptable range.n nodes of the two-tree, the height of the LGN to remove the time limit, the tree is ideal balance, meet such conditions of the tree only a complete bin
binary tree, we recommend that you insert nodes in sequence. The partition of the inserted node on the balanced binary tree is recursive. Recursive Algorithms include the following:
(1) If the tree is an empty tree, insert a new node with the Data Element E as the root node of the balanced binary tree, and Add 1 to the height of the tree.
(2) If the keyword of the Data Element e to be inserted is the same as that of the root node of the balanced binary tree (
the method of inserting nodes sequentially. The inserted nodes in the balanced binary tree are recursive. The recursive algorithm is as follows:
(1) If the tree is an empty tree, then insert a new node with a data element of e as the root node of the balanced binary tree, and the height of the tree is increased by 1.
(2) If the data element e to be inserted is equal to the key of the root node of the balanced Binary tree (BBST), then the insert opera
the node is inserted on the left subtree of the right subtree node B of a, the balance factor of a is increased from 1 to-2 and loses its balance. It is necessary to perform two rotation operations, first left-handed and then right-handed.B . Insert OperationThe recursive algorithm for inserting a new data element E on the AVL tree can be described as follows:(1) If Bbst is an empty tree, a new node with a data element of E is inserted as the root no
to $n\ ; +\; h$ instead of $h\; \cdot \; \log n$. This can be done as well.
The details are not mentioned first, but a necessary condition for this is very well understood: in the case of Bbst 's tree topology, the differences between adjacent versions cannot exceed constants. Unfortunately, the vast majority of Bbst, including the AVL tree previously learned, cannot guarantee this. Topological differen
version, a very useful MD5 brute-force tool), and the other is dictionary expert. BBSt. We can use it to generate the first two dictionaries that specify letters for us !! MD5CrackSpV2.3 is extremely fast. We can specify the number of open threads. I did a test in the P4, MB memory environment, using dictionary experts. BBSt generates a dictionary containing 0.3 billion records, about GB. It uses MD5CrackS
: md5 (password_mingwen + left (password_miwen, 2) = right (password_miwen, 32) as the saying goes, "to do good deeds, you must first sharpen the tool". I found two out-of-box tools on the Internet! One is MD5CrackSpV2.3 (speed enhanced version, a very useful MD5 brute-force tool), and the other is dictionary expert. BBSt. we can use it to generate the first two dictionaries that specify letters for us !! MD5CrackSpV2.3 is extremely fast. we can speci
version, a very useful MD5 brute-force tool), and the other is dictionary expert. bbst. We can use it to generate the first two dictionaries that specify letters for us !! Md5crackspv2.3 is extremely fast. We can specify the number of open threads. I did a test in the P4, MB memory environment, using dictionary experts. bbst generates a dictionary containing 0.3 billion records, about GB. It uses md5cracks
This summary of the sequel explains the end
A brief introduction of Union-find and collection and find out what the collection is
And the collection is, as its name says, a data structure for fast merging (Union) and lookup (find) operations.Actually, it's over here. In order to make it clear, say more details.First consider finding, and finding the least complex data structure is. The HashMap Hash Map is almost certain. Except this one. Set,bbst Set
ability is now tested. High and low levels.
What books do you read?
I recommend a tutorial. Cem Kaner has a set of bbst courses for black box testing. Can be found online... A full range of English lecture videos and supporting reading materials are provided. It is suitable for three months of black box testing. Black box testing is the basic skill of All testers later. It is not necessary to study after graduation, but it is too easy to learn. H
Rajesh Mathur is the test delivery manager of Cathay Pacific Airways, a Hong Kong airline. He manages route operations and tests of multiple projects in the Cargo domain. With more than 16 years of software testing experience, Rajesh has lived and established his own business in the United States, Britain, India and Hong Kong, China, he has served as a tester, test leader, test Manager, Program Manager, and test delivery manager for many well-known and cost-effective projects. During his career,
Heapthis data structure. The general heap is used to implement the priority queue. Priority queue: As with the usual stack and queue, except that each element inside has a "priority", in the process of processing, first of all the highest priority. Typically consists of three operations Getmax/delmax/insertStacks and queues are special cases of priority queues.The use of other data structures cannot be done simultaneously with the complexity of O (LGN). There is at least one operation that take
asp.ne bbst Source Analysis
1. Landing page
1. Landing Page
Landing page to pay attention to the general is two: how to implement the verification code. How to prevent SQL injection.
1. How to implement the verification code.
A simple implementation of the verification code can be done by generating a picture on the server side. Foreground words Add an IMG HTML control, the onclick event reloads the Checkcode page. In the background, use the dr
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